Attic Air Sealing In Orillia, Ontario
Ontario attic rebates up to $1,250 may apply
Attic air sealing in an Orillia house stops the warm, damp indoor air that slips up through gaps at lights, pipes and wires. We work from above, on the ceiling side, ahead of any new fill.
Fill slows heat as it passes through, but it does nothing to stop moving air. Attic air sealing is what stops the air.
Attic Air Sealing details
Where Attic Air Sealing Matters Most
The worst leaks usually sit around pot lights, plumbing vents, the chimney, wire holes drilled through the wall plates and the hatch. Bathroom fans that dump steam into the attic instead of outdoors add plenty of moisture too.
Each leak gets the right material: foam from a can for small holes, caulking for cracks and cut rigid board sealed with foam for big openings.
Attic Air Sealing Prevents Frost On The Roof Boards
When warm, damp air meets a cold roof in winter, it freezes onto the nails and boards as frost. On the first sunny day in March, that frost melts and rains down onto the fill below.
Attic air sealing stops most of that moisture at the ceiling, long before it can reach the roof. It is also the first part of ice dam prevention.
Attic Air Sealing Around The Hatch
Many hatches are a loose square of drywall with no gasket and nothing on top. We add weatherstripping to the frame and glue rigid foam to the back of the hatch so it stops leaking heat.
Pull-down attic stairs get a fitted insulated cover, which makes a real difference in older houses and cottages where the stairs open into a hallway.
Attic Air Sealing Prices
Attic air sealing by itself usually runs $400 to $1,500 a job, depending on how many leaks turn up. Paired with a top-up, the whole job usually costs $2.00 to $3.50 a square foot, going by the area of the ceiling.
Get Attic Air Sealing Done With Your New Layer
Call (705) 243-3272 and we will photograph the leaks we find and price the attic air sealing on paper. It works best alongside an attic insulation top-up. The home page has our full list of services.
Work That Often Goes With This One
Several of these are usually done on the same day.
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Attic Insulation Top-Up
Orillia's older houses mostly need an attic insulation top-up: fresh loose fill laid over the dry layer already up there, until the depth sits near R-60. For an older house, nothing gets the attic up to standard faster or for less money.
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Blown-In Attic Insulation
Blown-in attic insulation is loose cellulose or fibreglass sent up a hose and spread across the whole ceiling, around every wire, box and joist. It reaches the spots that batts leave open.
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Cottage Attic Insulation
Cottage attic insulation turns a thin summer ceiling into one that holds heat through a winter weekend. It is priced from the same rates we charge for a house in town.
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Attic Insulation Removal
Attic insulation removal vacuums out old fill that is wet, mouldy, flattened or fouled by animals, so the ceiling can be air sealed and refilled from scratch. A large hose carries it from the attic to a collection unit or sealed bags outside.
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Vermiculite Attic Insulation
Pebbly vermiculite attic insulation in an older house may contain asbestos, so a lab test always comes before any other step. Until the result is in, the safest choice is to leave it alone.
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Ice Dam Prevention
Ice dam prevention works from under the roof, keeping the roof boards so cold that the snow on top stays frozen until spring. Sealing, depth and open soffits are the three tools.
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Attic Insulation Rebate
Homes from Orillia out to Washago and Brechin may qualify for an attic insulation rebate of as much as $1,250 under Home Renovation Savings, the provincial program. This page lays out the program's rules as they stood when we last checked them in October 2026.
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Attic Insulation Cost
Around Orillia, attic insulation cost generally works out at $1.25 to $3.50 per square foot of ceiling, cottages and houses alike. Taking old fill out first costs more.
Steps and prices
Unsure Which Of These Your Attic Needs?
After one visit we can say what the attic needs and what that will come to.
Tell Us About Your House Or Cottage
A few details are enough for us to call you back and pick a day to visit. Calls go to (705) 243-3272.